It is vital that the PM appropriately responds to this state-sponsored terror attack — or she risks further empowering Putin.

Bill Browder, a former British financier in Russia, claims that the Government has legal powers to seize assets and property here owned by Russian officials and Putin’s oligarch pals. Good. Money talks. The pursuit should be relentless, aggressive and designed to cause maximum humiliation.

Officials at the Russian embassy in London should be named and booted out, too. There should be no diplomatic courtesy to a regime that harms civilians on our streets.

Emergency services advise everyone who visited Zizzis or The Mill Pub in Salisbury to wash their clothes as a precaution

Defence chief Gavin Williamson is right to call for military exercises in the Black Sea to show our military might.